From ba06fe8add5b788956a7317246c6280dfc157040 Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Philippe=20Mathieu-Daud=C3=A9?= Date: Thu, 3 Sep 2020 10:08:29 +0200 Subject: dma: Let dma_memory_read/write() take MemTxAttrs argument MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Let devices specify transaction attributes when calling dma_memory_read() or dma_memory_write(). Patch created mechanically using spatch with this script: @@ expression E1, E2, E3, E4; @@ ( - dma_memory_read(E1, E2, E3, E4) + dma_memory_read(E1, E2, E3, E4, MEMTXATTRS_UNSPECIFIED) | - dma_memory_write(E1, E2, E3, E4) + dma_memory_write(E1, E2, E3, E4, MEMTXATTRS_UNSPECIFIED) ) Reviewed-by: Richard Henderson Reviewed-by: Li Qiang Reviewed-by: Edgar E. Iglesias Signed-off-by: Philippe Mathieu-Daudé Acked-by: Stefan Hajnoczi Message-Id: <20211223115554.3155328-6-philmd@redhat.com> --- include/hw/ppc/spapr_vio.h | 6 ++++-- include/sysemu/dma.h | 20 ++++++++++++-------- 2 files changed, 16 insertions(+), 10 deletions(-) (limited to 'include') diff --git a/include/hw/ppc/spapr_vio.h b/include/hw/ppc/spapr_vio.h index c90e74a..5d2ea8e 100644 --- a/include/hw/ppc/spapr_vio.h +++ b/include/hw/ppc/spapr_vio.h @@ -97,14 +97,16 @@ static inline bool spapr_vio_dma_valid(SpaprVioDevice *dev, uint64_t taddr, static inline int spapr_vio_dma_read(SpaprVioDevice *dev, uint64_t taddr, void *buf, uint32_t size) { - return (dma_memory_read(&dev->as, taddr, buf, size) != 0) ? + return (dma_memory_read(&dev->as, taddr, + buf, size, MEMTXATTRS_UNSPECIFIED) != 0) ? H_DEST_PARM : H_SUCCESS; } static inline int spapr_vio_dma_write(SpaprVioDevice *dev, uint64_t taddr, const void *buf, uint32_t size) { - return (dma_memory_write(&dev->as, taddr, buf, size) != 0) ? + return (dma_memory_write(&dev->as, taddr, + buf, size, MEMTXATTRS_UNSPECIFIED) != 0) ? H_DEST_PARM : H_SUCCESS; } diff --git a/include/sysemu/dma.h b/include/sysemu/dma.h index e8ad422..522682b 100644 --- a/include/sysemu/dma.h +++ b/include/sysemu/dma.h @@ -143,12 +143,14 @@ static inline MemTxResult dma_memory_rw(AddressSpace *as, dma_addr_t addr, * @addr: address within that address space * @buf: buffer with the data transferred * @len: length of the data transferred + * @attrs: memory transaction attributes */ static inline MemTxResult dma_memory_read(AddressSpace *as, dma_addr_t addr, - void *buf, dma_addr_t len) + void *buf, dma_addr_t len, + MemTxAttrs attrs) { return dma_memory_rw(as, addr, buf, len, - DMA_DIRECTION_TO_DEVICE, MEMTXATTRS_UNSPECIFIED); + DMA_DIRECTION_TO_DEVICE, attrs); } /** @@ -162,12 +164,14 @@ static inline MemTxResult dma_memory_read(AddressSpace *as, dma_addr_t addr, * @addr: address within that address space * @buf: buffer with the data transferred * @len: the number of bytes to write + * @attrs: memory transaction attributes */ static inline MemTxResult dma_memory_write(AddressSpace *as, dma_addr_t addr, - const void *buf, dma_addr_t len) + const void *buf, dma_addr_t len, + MemTxAttrs attrs) { return dma_memory_rw(as, addr, (void *)buf, len, - DMA_DIRECTION_FROM_DEVICE, MEMTXATTRS_UNSPECIFIED); + DMA_DIRECTION_FROM_DEVICE, attrs); } /** @@ -239,7 +243,7 @@ static inline void dma_memory_unmap(AddressSpace *as, dma_addr_t addr) \ { \ uint##_bits##_t val; \ - dma_memory_read(as, addr, &val, (_bits) / 8); \ + dma_memory_read(as, addr, &val, (_bits) / 8, MEMTXATTRS_UNSPECIFIED); \ return _end##_bits##_to_cpu(val); \ } \ static inline void st##_sname##_##_end##_dma(AddressSpace *as, \ @@ -247,20 +251,20 @@ static inline void dma_memory_unmap(AddressSpace *as, uint##_bits##_t val) \ { \ val = cpu_to_##_end##_bits(val); \ - dma_memory_write(as, addr, &val, (_bits) / 8); \ + dma_memory_write(as, addr, &val, (_bits) / 8, MEMTXATTRS_UNSPECIFIED); \ } static inline uint8_t ldub_dma(AddressSpace *as, dma_addr_t addr) { uint8_t val; - dma_memory_read(as, addr, &val, 1); + dma_memory_read(as, addr, &val, 1, MEMTXATTRS_UNSPECIFIED); return val; } static inline void stb_dma(AddressSpace *as, dma_addr_t addr, uint8_t val) { - dma_memory_write(as, addr, &val, 1); + dma_memory_write(as, addr, &val, 1, MEMTXATTRS_UNSPECIFIED); } DEFINE_LDST_DMA(uw, w, 16, le); -- cgit v1.1